Observed topology
AS25394 MK-NETZDIENSTE-AS
Transit
Upstream networks
Networks observed carrying traffic for AS25394: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 558 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 341 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 277 |
| AS3320 | Deutsche Telekom AG | Mobile | IPv4 IPv6 | 86 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 | 73 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 IPv6 | 64 |
| AS50673 | Serverius Holding B.V. | Unclassified | IPv4 | 54 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 34 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 32 |
| AS57821 | Nonattached Network e.V. | Unclassified | IPv4 IPv6 | 32 |
| AS56655 | Gigahost AS | Unclassified | IPv4 IPv6 | 31 |
| AS206499 | LOCIX LIMITED | Unclassified | IPv4 | 27 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 27 |
| AS57463 | NetIX Communications JSC | Unclassified | IPv4 | 27 |
| AS12552 | GlobalConnect AB | Unclassified | IPv4 | 27 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 27 |
| AS1836 | green.ch AG | Residential | IPv4 | 27 |
| AS34019 | Hivane Association | Unclassified | IPv4 | 27 |
| AS208972 | GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | Unclassified | IPv4 | 27 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 27 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 | 27 |
| AS49673 | Truenetwork LLC | Unclassified | IPv4 | 27 |
| AS202365 | Omer GOLGELI | Unclassified | IPv4 | 25 |
| AS212508 | Lowhosting services of Davide Gennari | Unclassified | IPv4 | 25 |
| AS34800 | Securebit AG | Unclassified | IPv4 | 25 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 12 |
| AS205794 | JINZE YANG | Unclassified | IPv6 | 7 |
| AS56662 | Marcin Gondek | Unclassified | IPv6 | 7 |
| AS213241 | TECHIT.BE SRL | Residential | IPv6 | 6 |
| AS12859 | BIT BV | Hosting | IPv4 | 2 |
Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.
Transit
Downstream networks
Networks for which AS25394 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS59790 | Marco Bungalski GmbH | Residential | IPv4 | 639 |
| AS206423 | binsec systems GmbH | Unclassified | IPv4 IPv6 | 395 |
| AS41723 | Jens Christian Schneeweiss trading as Technische Systemprogrammierung | Unclassified | IPv4 IPv6 | 290 |
| AS9188 | InfoServe GmbH | Hosting | IPv4 IPv6 | 273 |
| AS41163 | RIZ IT MOTION GmbH | Unclassified | IPv4 IPv6 | 207 |
| AS209981 | System Crew GmbH | Unclassified | IPv4 | 193 |
| AS211909 | Hope Media Europe e.V. | Unclassified | IPv4 | 192 |
| AS9197 | becom Systemhaus Verwaltungs-GmbH | Unclassified | IPv4 IPv6 | 168 |
| AS215344 | connect2 GmbH | Unclassified | IPv4 IPv6 | 163 |
| AS20792 | VISTEC Internet Service GmbH | Unclassified | IPv4 IPv6 | 155 |
| AS42034 | DN-Systems Enterprise Internet Solutions GmbH | Unclassified | IPv4 IPv6 | 131 |
| AS31147 | Inline Internet Online Dienste GmbH | Hosting | IPv4 | 128 |
| AS25560 | rh-tec Business GmbH | Hosting | IPv4 IPv6 | 122 |
| AS201458 | InnKlinikum gKU Altoetting und Muehldorf | Unclassified | IPv4 IPv6 | 103 |
| AS207580 | Greenbone AG | Unclassified | IPv4 IPv6 | 102 |
| AS199703 | Landkreis Kassel | Unclassified | IPv4 IPv6 | 102 |
| AS201901 | TMP-SYSTEM-SERVICE GmbH | Unclassified | IPv4 IPv6 | 101 |
| AS198956 | ARADOS GmbH | Unclassified | IPv4 IPv6 | 101 |
| AS213939 | Steffen Schiffel GmbH | Unclassified | IPv4 IPv6 | 100 |
| AS202741 | Martin Fichtner & Peter Feist GBR | Unclassified | IPv4 IPv6 | 73 |
| AS43150 | MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG | Unclassified | IPv4 IPv6 | 73 |
| AS204197 | JD Invest GmbH | Unclassified | IPv4 | 72 |
| AS56942 | Hansa Luftbild Consulting International GmbH | Unclassified | IPv4 | 65 |
| AS213209 | TST GmbH | Unclassified | IPv4 | 64 |
| AS211472 | SwissLink Carrier AG | Unclassified | IPv4 | 64 |
| AS198205 | notebooksbilliger.de AG | Unclassified | IPv4 | 64 |
| AS12915 | EPAG Domainservices GmbH | Unclassified | IPv4 IPv6 | 54 |
| AS205094 | Tivon Haeberlein | Unclassified | IPv4 IPv6 | 52 |
| AS49499 | Industrie und Handelskammer Reutlingen | Unclassified | IPv4 | 40 |
| AS209379 | Pengutronix e.K. | Unclassified | IPv4 IPv6 | 36 |
| AS206274 | HDI AG | Unclassified | IPv4 | 26 |
| AS395753 | KKR | Unclassified | IPv4 | 24 |
| AS47611 | Warner Music International Services Limited | Unclassified | IPv4 | 15 |
| AS203347 | Yalwa GmbH | Unclassified | IPv4 | 11 |
Adjacency
Adjacent networks
Every AS seen directly next to AS25394 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 1,563 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 1,144 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 1,019 |
| AS59790 | Marco Bungalski GmbH | Residential | IPv4 | 698 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 464 |
| AS206423 | binsec systems GmbH | Unclassified | IPv4 IPv6 | 395 |
| AS41723 | Jens Christian Schneeweiss trading as Technische Systemprogrammierung | Unclassified | IPv4 IPv6 | 290 |
| AS9188 | InfoServe GmbH | Hosting | IPv4 IPv6 | 273 |
| AS25560 | rh-tec Business GmbH | Hosting | IPv4 IPv6 | 242 |
| AS41163 | RIZ IT MOTION GmbH | Unclassified | IPv4 IPv6 | 207 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 IPv6 | 194 |
| AS209981 | System Crew GmbH | Unclassified | IPv4 | 193 |
| AS211909 | Hope Media Europe e.V. | Unclassified | IPv4 | 192 |
| AS3320 | Deutsche Telekom AG | Mobile | IPv4 IPv6 | 190 |
| AS50673 | Serverius Holding B.V. | Unclassified | IPv4 | 188 |
| AS9197 | becom Systemhaus Verwaltungs-GmbH | Unclassified | IPv4 IPv6 | 168 |
| AS215344 | connect2 GmbH | Unclassified | IPv4 IPv6 | 163 |
| AS20792 | VISTEC Internet Service GmbH | Unclassified | IPv4 IPv6 | 155 |
| AS208972 | GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI | Unclassified | IPv4 | 138 |
| AS206499 | LOCIX LIMITED | Unclassified | IPv4 | 132 |
| AS42034 | DN-Systems Enterprise Internet Solutions GmbH | Unclassified | IPv4 IPv6 | 131 |
| AS31147 | Inline Internet Online Dienste GmbH | Hosting | IPv4 | 128 |
| AS57821 | Nonattached Network e.V. | Unclassified | IPv4 IPv6 | 125 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 119 |
| AS49673 | Truenetwork LLC | Unclassified | IPv4 | 110 |
| AS56655 | Gigahost AS | Unclassified | IPv4 IPv6 | 105 |
| AS201458 | InnKlinikum gKU Altoetting und Muehldorf | Unclassified | IPv4 IPv6 | 103 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 102 |
| AS207580 | Greenbone AG | Unclassified | IPv4 IPv6 | 102 |
| AS199703 | Landkreis Kassel | Unclassified | IPv4 IPv6 | 102 |
| AS1836 | green.ch AG | Residential | IPv4 | 101 |
| AS201901 | TMP-SYSTEM-SERVICE GmbH | Unclassified | IPv4 IPv6 | 101 |
| AS198956 | ARADOS GmbH | Unclassified | IPv4 IPv6 | 101 |
| AS213939 | Steffen Schiffel GmbH | Unclassified | IPv4 IPv6 | 100 |
| AS202365 | Omer GOLGELI | Unclassified | IPv4 | 94 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 93 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 85 |
| AS43150 | MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG | Unclassified | IPv4 IPv6 | 73 |
| AS202741 | Martin Fichtner & Peter Feist GBR | Unclassified | IPv4 IPv6 | 73 |
| AS204197 | JD Invest GmbH | Unclassified | IPv4 | 72 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 71 |
| AS57463 | NetIX Communications JSC | Unclassified | IPv4 | 71 |
| AS212508 | Lowhosting services of Davide Gennari | Unclassified | IPv4 | 71 |
| AS56942 | Hansa Luftbild Consulting International GmbH | Unclassified | IPv4 | 65 |
| AS198205 | notebooksbilliger.de AG | Unclassified | IPv4 | 64 |
| AS213209 | TST GmbH | Unclassified | IPv4 | 64 |
| AS211472 | SwissLink Carrier AG | Unclassified | IPv4 | 64 |
| AS12552 | GlobalConnect AB | Unclassified | IPv4 | 60 |
| AS34800 | Securebit AG | Unclassified | IPv4 | 59 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 55 |
| AS12915 | EPAG Domainservices GmbH | Unclassified | IPv4 IPv6 | 54 |
| AS34019 | Hivane Association | Unclassified | IPv4 | 53 |
| AS205094 | Tivon Haeberlein | Unclassified | IPv4 IPv6 | 52 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 IPv6 | 48 |
| AS49499 | Industrie und Handelskammer Reutlingen | Unclassified | IPv4 | 40 |
| AS209379 | Pengutronix e.K. | Unclassified | IPv4 IPv6 | 36 |
| AS56662 | Marcin Gondek | Unclassified | IPv6 | 35 |
| AS213241 | TECHIT.BE SRL | Residential | IPv6 | 29 |
| AS205794 | JINZE YANG | Unclassified | IPv6 | 29 |
| AS206274 | HDI AG | Unclassified | IPv4 | 26 |
| AS395753 | KKR | Unclassified | IPv4 | 24 |
| AS47611 | Warner Music International Services Limited | Unclassified | IPv4 | 15 |
| AS203347 | Yalwa GmbH | Unclassified | IPv4 | 11 |
| AS29075 | IELO-LIAZO SERVICES SAS | Unclassified | IPv4 | 9 |
| AS35280 | F5 Networks SARL | Hosting | IPv4 | 4 |
| AS12859 | BIT BV | Hosting | IPv4 | 3 |
| AS50629 | LWLcom GmbH | Unclassified | IPv4 | 1 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 1 |
Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.
Interconnection
Exchange presence
Internet exchanges where Packet Clearing House has a port recorded for AS25394, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 5 exchanges across 1 country and 1 region.
| Exchange | Location | Their address | Member ports |
|---|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.140 | 1,073 |
| KleyReX Internet Exchange | Frankfurt, Germany | 193.189.82.125 | 475 |
| Local Internet Exchange Frankfurt | Frankfurt, Germany | 185.1.167.119 | 223 |
| Megaport Frankfurt IX | Frankfurt, Germany | 62.69.146.107 | 114 |
| Staclar Internet Exchange | Frankfurt, Germany | 185.1.180.19 | 9 |
Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.
Provenance
Where this comes from
Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.
Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.
Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 recorded member ports, licensed CC BY-NC-SA 3.0.
PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.